Struct slog::Filter
[−]
[src]
pub struct Filter<D: Drain, F>(pub D, pub F) where F: Fn(&Record) -> bool + 'static + Send + Sync;
Drain
filtering records
Wraps another Drain
and passes Record
s to it, only if they satisfy a
given condition.
Methods
impl<D: Drain, F> Filter<D, F> where F: 'static + Sync + Send + Fn(&Record) -> bool
[src]
fn new(drain: D, cond: F) -> Self
Create Filter
wrapping given drain
Trait Implementations
impl<D: Drain, F> Drain for Filter<D, F> where F: 'static + Sync + Send + Fn(&Record) -> bool
[src]
type Ok = Option<D::Ok>
Type returned by this drain Read more
type Err = D::Err
Type of potential errors that can be returned by this Drain
fn log(&self,
record: &Record,
logger_values: &OwnedKVList)
-> Result<Self::Ok, Self::Err>
record: &Record,
logger_values: &OwnedKVList)
-> Result<Self::Ok, Self::Err>
Handle one logging statement (Record
) Read more
fn map<F, R>(self, f: F) -> R where Self: Sized, F: FnOnce(Self) -> R
Pass Drain
through a closure, eg. to wrap into another Drain
. Read more
fn filter<F>(self, f: F) -> Filter<Self, F> where Self: Sized, F: Fn(&Record) -> bool + 'static + Send + Sync
Filter logging records passed to Drain
Read more
fn filter_level(self, level: Level) -> LevelFilter<Self> where Self: Sized
Filter logging records passed to Drain
(by level) Read more
fn map_err<F, E>(self, f: F) -> MapError<Self, E> where Self: Sized, F: 'static + Sync + Send + Fn(Self::Err) -> E
Map logging errors returned by this drain Read more
fn ignore_res(self) -> IgnoreResult<Self> where Self: Sized
Ignore results returned by this drain Read more